Is Fabric Acoustic? What You Need to Know

At Sontext, we’re often asked, “Is this fabric suitable for an acoustic panel?” It’s a great question, and one that highlights the confusion surrounding so-called “acoustic fabrics.” While many textiles are marketed as acoustic, not all are designed to work effectively with sound-absorbing panels.

Just because a fabric is called "acoustic" doesn’t mean it improves sound absorption. In fact, some fabrics can reduce a panel’s effectiveness if they block airflow. For a fabric to be truly acoustic, it needs to be acoustically transparent—that is, it must allow air (and therefore sound waves) to pass through easily. If the fabric resists airflow, it can prevent sound from reaching the acoustic insulation behind it, making the panel less effective.

The key technical measure to look for is Flow Resistivity. This figure tells you how breathable the fabric is. Fabrics with high breathability, such as those from Laine, Guilford of Maine, or Kvadrat, are ideal choices. On the other hand, dense fabrics like leather, suede, or vinyl can block sound unless perforated—and even then, careful testing is advised.

If you’re unsure whether your chosen fabric is suitable, it’s always best to consult Sontext or an acoustic engineer. The right fabric won’t just look good—it will also support the performance of your sound-absorbing panels.

What Makes a Fabric Acoustically Transparent?

• Allows air to pass through easily
• Does not block or reflect sound waves
• Has low flow resistivity
• Works in conjunction with acoustic insulation
• Is ideally tested and recommended by acoustic professionals

Frequently Asked Questions

What is “acoustic fabric”?

A fabric that allows air and sound waves to pass through freely so they can be absorbed by the acoustic material behind it.

Can all fabrics be used on acoustic panels?

No. Dense or sealed fabrics can block sound and reduce a panel’s performance unless specifically designed for acoustic use.

What is Flow Resistivity?

It’s a measure of how much a fabric resists airflow—lower numbers indicate more breathable, and usually more acoustically suitable, fabrics.

Are perforated fabrics acoustic?

Sometimes. Perforation may improve airflow, but effectiveness depends on the fabric’s composition and how it’s installed.

Where can I find suitable acoustic fabrics?

Sontext works with reputable suppliers like Laine, Maharam, and Guilford of Maine to provide tested acoustic fabric options.

Need Help Choosing the Right Fabric?

If you're specifying fabric for acoustic panels, get in touch with Sontext. We'll help you choose materials that meet both your design and performance goals.

Email us at sales@sontext.com.au ?